#include <bits/stdc++.h>
using namespace std;
#define int long long
const int mn = 1e6+7;
const int mod1 = 1e9+7;
const int mod2 = 1e9+9;
const int p1 = 269;
const int p2 = 271;
int32_t n,wyn;
string t[mn];
vector<int> hpref[mn];
map<int32_t, int32_t> dp;
int pot[mn];
int32_t main(){
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie();
cin>>n;
pot[0] = 1;
for (int i = 1; i < mn; i++){
pot[i] = pot[i-1]*p1%mod1;
}
for (int i = 0; i < n; i++){
cin>>t[i];
hpref[i].push_back(0);
for (int j = 1; j <= (int)t[i].size(); j++){
hpref[i].push_back((hpref[i].back()*p1+t[i][j-1])%mod1);
}
int32_t mx = 0;
for (int j = 1; j <= (int)t[i].size(); j++){
int h = hpref[i][j];
if (h == (hpref[i][t[i].size()]-((hpref[i][t[i].size()-j]*pot[j])%mod1)+mod1)%mod1){
mx = max(mx, dp[h]);
}
}
mx++;
wyn = max(wyn, mx);
dp[hpref[i].back()] = mx;
// cout<<hpref[i].size()<<" "<<hpref[i].back().first<<" "<<hpref[i].back().second<<" "<<mx<<"\n";
}
cout<<wyn<<"\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
24 ms |
63068 KB |
Output is correct |
2 |
Correct |
24 ms |
63060 KB |
Output is correct |
3 |
Correct |
24 ms |
63068 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
24 ms |
63056 KB |
Output is correct |
2 |
Correct |
24 ms |
63068 KB |
Output is correct |
3 |
Correct |
25 ms |
63708 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
37 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
26 ms |
63832 KB |
Output is correct |
2 |
Runtime error |
30 ms |
65536 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
30 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
30 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
36 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
30 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
30 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
33 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |